/** 2D vector with x, y components. */
export declare class Vector2 {
    #private;
    constructor(x?: number, y?: number);
    get x(): number;
    set x(value: number);
    get y(): number;
    set y(value: number);
    add(v: Vector2): this;
    clone(): Vector2;
    copy(v: Vector2): this;
    /** 2D cross product (scalar). */
    cross(v: Vector2): number;
    /** Cross product magnitude of two 2D vectors. */
    static cross(x1: number, y1: number, x2: number, y2: number): number;
    distanceTo(v: Vector2): number;
    dot(v: Vector2): number;
    /** Dot product of (x, y) with a target vector. */
    static dot(x: number, y: number, target?: Vector2): number;
    equals(v: Vector2): boolean;
    fromArray(array: number[]): this;
    get length(): number;
    get lengthSq(): number;
    lerp(v: Vector2, alpha: number): this;
    /** Component-wise max. */
    max(v: Vector2): this;
    /** Component-wise min. */
    min(v: Vector2): this;
    mulScalar(scalar: number): this;
    normalize(): this;
    set(x: number, y: number): this;
    sub(v: Vector2): this;
    /** Truncates x and y to integers via Math.trunc(). */
    trunc(): this;
    [Symbol.iterator](): Generator<number>;
}
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